Author Question: Two very small plastic balls of equal mass are released from rest. One of them carries +10 C of ... (Read 72 times)

jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
Two very small plastic balls of equal mass are released from rest. One of them carries +10 C of excess charge and the other one carries +1C of charge.
 
  No other charges or fields are present. Which of the following statements are true about them as they move away from each other? (There may be more than one correct choice.)
  A) The acceleration of the 10-C ball is 10 times that of the 1-C ball.
  B) The balls always have accelerations of equal magnitude.
  C) The speed of the balls keeps increasing.
  D) The acceleration of the balls keeps increasing.
  E) The acceleration of the 1-C ball is 10 times that of the 10-C ball.

Question 2

Astronaut Sarah leaves Earth in a spaceship at a speed of 0.280c relative to Earth. Sarah's destination is a star system 12.5 light-years away (one light-year is the distance light travels in one year).
 
  According to Sarah, how far did she travel during the trip?
  A) 12.0 light-years
  B) 11.5 light-years
  C) 13.0 light-years
  D) 11.0 light-years
  E) 12.5 light-years


spencer.martell

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

B, C

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

There are more bacteria in your mouth than there are people in the world.

For a complete list of videos, visit our video library